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Old 11-05-2009, 06:43 PM   #1
alpentalic
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Default Prosport Oil Pressure Sender Problems

Just wondering if anyone else has had problems? FYI - my experience is specific to the performance series.

My story:

Purchased a set of prosport gauges about 6 months ago, oil pressure and oil temp. Install the gauges and the oil temp works great right out of the box. Oil pressure starts out normal, reading maxed out, but once warm sparatically cuts in and out and reads 0psi most of the time. So, I check and recheck grounds and sender wires and determine out of box failure on the sender. Contact prosport and ordered a new sender. Customer service rep offered to credit me back if I mailed in the broken sender, assuming the sender proved to be bad in a bench test. New sender arrived and solved the problem. Never mailed in the deffective one as the part was only $20 and didn't seem like it was worth the hassel.

Everything works great for the last 6 months and recently the gauge reading drops to 20ish psi while driving and I notice when I stopped that I'm leaking oil. WTF. Get under the car and locate the source of the leak at the oil pressure sender. I assume that the leak is related to the tefflon tape that I used to seal the threads and remove the sender and reseal with a liquid based non-drying thread sealer. Did not fix the problem. Upon further inspection realize that the oil is leaking from the sender it self. The sender unit is a two piece construction with one part as the treaded end of the sender and the other piece being the cup like housing that holds the sender. It seems as if the seal at this junction between the two pieces has failed and is allowing oil to escape.

I'm wondering if this is just an extreame fluke that I have had two failures in a period of 6 months, because I have heard nothing but good things about these gauges on a bang for your buck level. Has anyone else out there had a similar experience with the performance series sender?


List of NASIOC users who have experienced failures:
alpentalic - 2 failures
watercooled - 2 failures
FleaDog - 2 failures
SCOOBYdudematt - 2 failures
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Last edited by alpentalic; 11-24-2009 at 01:16 PM.
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Old 11-10-2009, 11:01 AM   #2
watercooled
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Default Re: Prosport Oil Pressure Sender Problems

im on my second oil pressure sender for this gauge, and its currently broken. I never had any leaks, the darn thing just stopped working after about 6 months both times.

mayb third times a charm?
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Old 11-10-2009, 11:28 AM   #3
spinningcain
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mine has been fine for a year
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Old 11-10-2009, 05:22 PM   #4
HeyChris
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Prosport gauges = Glowshift.com gauges. Just relabled with higher price.

I have the latter for over a year, no issues other than reads a little higher than I think it should be...

C.
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Old 11-11-2009, 05:15 PM   #5
alpentalic
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Default

So I have found at least one other owner who has gone through not one, but two senders. I have no complaints about the gauges, they work fine and read what I believe to be accurately. I'm just at the point where I don't want to spend $20 on another sender that is just going to fail again.
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Old 11-17-2009, 10:33 AM   #6
sourcandy
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Default

If your using tape on the threads, make sure it's rated safe for oil usage. While I have not seen the threads on the sender, I'm guessing it is NPT cut. In my understanding you don't need sealer with NPT as they are designed to seal? Could be wrong, just offering help.
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Old 11-21-2009, 08:17 AM   #7
FleaDog
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Had to replace 2 before the latest which has been running strong (knock on wood).
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Old 11-23-2009, 03:24 PM   #8
alpentalic
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So now were up to three people that have gone through more than two senders. I'm going to start making a list in the original post.
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Old 11-23-2009, 06:47 PM   #9
SCOOBYdudematt
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this is my second sender and it looks like it has gone bad after about 3 months of use.... :fail:
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Old 11-23-2009, 11:22 PM   #10
watercooled
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where are you mounting these senders?
I wonder if maybe they are getting wet or too hot.

Mine is near the shock tower connected to a remote line going to the factory oil plug.
I dont think its getting too hot way over there, but who knows.

I ordered a 3rd one, but this time I think I will wrap the oil line from the block
that passes by the turbo with aluminum shielding and see if that helps it survive.
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Old 11-24-2009, 01:22 PM   #11
alpentalic
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Default

Quote:
Originally Posted by SCOOBYdudematt View Post
this is my second sender and it looks like it has gone bad after about 3 months of use.... :fail:
added to the list of failures

Quote:
Originally Posted by watercooled View Post
where are you mounting these senders?
I wonder if maybe they are getting wet or too hot.

Mine is near the shock tower connected to a remote line going to the factory oil plug.
I dont think its getting too hot way over there, but who knows.

I ordered a 3rd one, but this time I think I will wrap the oil line from the block
that passes by the turbo with aluminum shielding and see if that helps it survive.
Mine was direct into the sandwich plate that prosport sells. I kept the under tray on my car at all times, so it shouldn't have gotten overly wet and regardless should be enginieered to withstand a reasonable level of moisture and heat and nothing should have caused mine to start leaking.
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Old 11-24-2009, 03:02 PM   #12
mastershakewrx
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my gauge stoped reading a signal 3 days after i installed it im waiting to see if prosport will warranty it
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Old 11-24-2009, 03:36 PM   #13
stucknde
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Default

I was running my oil pressure sender on the sandwich adaptor for about 3 months, then the wire came loose, and i then used lock nuts...bad idea, i ended up spinning the threaded posts and i believe breaking the wires inside the sender...

So long story short...thread lock
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Old 11-24-2009, 04:27 PM   #14
alpentalic
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Default

Quote:
Originally Posted by mastershakewrx View Post
my gauge stoped reading a signal 3 days after i installed it im waiting to see if prosport will warranty it
I assume you have checked your connections and have confirmed that this is some sort of failure. Have you determined if it was the gauge or the sender that failed?
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Old 11-24-2009, 09:57 PM   #15
watercooled
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Default

I want to add that I have never had a problem with the gauges themselves,
and I have alot of them. Oil pressure, coolant temp, EGT, mechanical boost, oil temp,
and not 1 single problem ever in 2 years.
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Old 11-25-2009, 12:28 PM   #16
stucknde
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yeah i pretty much broke my sender, my only advice is for people to use thread lock so the nuts dont vibrate off...which i will be doing on my next one.
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Old 07-20-2010, 07:47 AM   #17
FCmaniac
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Isn't there a better sender from a different company that we can buy? I'm talking about for use with the Prosport electric oil pressure gauges.
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Old 09-17-2010, 10:19 PM   #18
thechoochman28
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Default

Add me to the list, oil pressure sender lasted 3.7 years...fuel pressure sender is still working though.

I thought I was going crazy and had serious engine issues, because the leak was so slow I couldn't find it until the oil started to leak more and then burn off and smoke on top of my engine block.

It appears the leak was coming from between the housing of the sender...if this one goes i'll know to throw some high temp epoxy on the next one.
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Old 10-25-2010, 09:36 PM   #19
ScooByBooSt007
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Wow what a coincidence, my oil pressure gauge took a **** out on me too about a week ago and I'm now mysteriously leaking a minuscule amount of oil somewhere but I can't seem to locate where it's coming from cuz it's not actually leaking but it's being burned off somewhere below my passenger side cylinder head so I never actually get to see where it's coming from. I'm hoping that it's coming from the sender and nothing else but I dint think it is becaue I'm taping my oil pressure sender off one of those sandwich adapter platea that go between the oil filter and the oil cooler and if I'm correct the adapter plate sits lower than any of the exhaust piping correct??. Haven't gotten a chance to look at everything yet but I wouldn't be surprised if it was from this sending unit!!!

Last edited by ScooByBooSt007; 10-25-2010 at 09:47 PM.
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Old 10-26-2010, 10:23 AM   #20
Blackcot
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i got mine 7 month ago and boost and oil press stop working....

i send an email to prosport and they said to send back the gauge for testing......

or that they can sell me a new sender for 36$....

next time i will stick to autometer for ''cheap'' gauge
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Old 01-12-2011, 10:18 PM   #21
watercooled
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I wanted to add in addition to the 3 oil pressure senders I have had, I finally got around to tapping the EGT sender into the #4 manifold and the dang thing does not even work. Very frustrating
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Old 05-11-2011, 01:05 PM   #22
crash
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I've also had two oil pressure sender failures.... I'm sick of changing these damn things out...
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Old 05-11-2011, 01:43 PM   #23
FCmaniac
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Quote:
Originally Posted by FCmaniac View Post
Isn't there a better sender from a different company that we can buy? I'm talking about for use with the Prosport electric oil pressure gauges.
still wondering if anyone is aware of other sender options
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Old 05-11-2011, 02:06 PM   #24
HeyChris
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Unfortunately both the Passport n glowshift gauges have been calibrated to the ridiculous
Specs of 3-160 Ohms. Most other brands out there do not start until 10 Ohms....

I looked at other Sending Units before replacing mine. I was unsuccessful and ended buying a GS unit, with a 10% coupon you can easily find online.

The last one lasted me three years. Other than this one working, the main difference is a JPN logo on the unit, where the original did not. Taking the marking as being accurate with the manufacture origin with a grain of salt.

C.
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Old 05-25-2011, 11:10 AM   #25
JRizzy24
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I replaced both my Oil Pressure and Boost/Vac senders (and replaced the boost hose), traced each wire and ground but the gauges were FUBAR'd. Ordered replacement gauges (now I have an extra sender for each when they fail) for ease of use but they changed the gauges and connectors so I had to do a little rewiring...however, the gauges are now working again.

If they fail again I'm going with another brand
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